CN208094525U - A kind of electronic switching circuit - Google Patents
A kind of electronic switching circuit Download PDFInfo
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- CN208094525U CN208094525U CN201820412591.7U CN201820412591U CN208094525U CN 208094525 U CN208094525 U CN 208094525U CN 201820412591 U CN201820412591 U CN 201820412591U CN 208094525 U CN208094525 U CN 208094525U
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Abstract
The utility model discloses a kind of electronic switching circuits, isolation circuit, optocoupler driving circuit, push-pull output circuit and wiring units are recommended including MOS switch unit, constant-current source circuit, photovoltaic power supply optocoupler, optocoupler, MOS switch unit includes at least one set of metal-oxide-semiconductor, every group of metal-oxide-semiconductor is formed by the MOS of two differential concatenations, is connected between energy-storage module and load by two drain electrodes of two metal-oxide-semiconductors of differential concatenation；By controller control signal is provided to metal-oxide-semiconductor driving circuit, driving optocoupler recommends isolation circuit and forms recommending output mode, push-pull output circuit generates secondary recommend under the action of the recommending output mode, the metal-oxide-semiconductor on or off for driving MOS switch unit, to realize the break-make of electric energy between energy-storage module and load；Power supply enters photovoltaic power supply optocoupler by constant-current source circuit, recommends and drive metal-oxide-semiconductor to provide the energy to push-pull output circuit.
Description
Technical field
The utility model is related to electronic switching circuits, can be applied to electric vehicle, unmanned plane, energy storage more particularly, to one kind
The alternating current-direct current high-voltage heavy-current electronic switch circuit of the fields such as equipment, distribution system battery management system.
Background technology
The electronic switch of the battery management system (BMS) of battery of electric vehicle group uses high power relay mostly at present, makes
It is had the disadvantage that with the mode of relay：Install that huge, wiring is cumbersome；Mechanical Contact mode consume energy big, switch motion when
Extend；Frequent movement causes mechanical aging, contact oxidation, internal resistance raising, the excessive or even contact that generates heat to be adhered not disengaging and cause
Personnel, equipment safety hidden danger；Switch motion has noise；In addition, the high-power relay at present in industry is of high cost.Relay
The switching of device circuit is my electric vehicle, the especially common practice in low-speed vehicle field at present.
Gradual with new-energy automobile is popularized, and someone makees electronic switch using the modes such as IGBT, silicon-controlled, but such
The shortcomings that switch is driving circuit complexity, poor reliability, and internal resistance is high, calorific value is big, and typically one-way commutation is connected, double
Cost to conducting is high.
The disclosure of background above technology contents is only used for utility model design and the technical side that auxiliary understands the utility model
Case not necessarily belongs to the prior art of present patent application, shows the above in this patent Shen in no tangible proof
In the case of being had disclosed before the applying date please, above-mentioned background technology should not be taken to novelty and the creation of evaluation the application
Property.
Utility model content
To overcome the shortcomings of in current BMS present in electronic switching circuit, that the utility model proposes a kind of integrated levels is high,
Simple to install, can the applicable height of bidirectional conduction, switch fast response time, micro power consumption, and alternating current-direct current wide using voltage range
Press high-current switch circuit.
The technical solution that the utility model is proposed in order to overcome the deficiencies of the prior art is as follows：
A kind of electronic switching circuit has the first ends I/O and the 2nd ends I/O, and passes through the first ends I/O and described the
Two ends I/O are connected between energy-storage module and load, and the electronic switching circuit includes MOS switch unit, constant-current source circuit, light
Volt power supply optocoupler, optocoupler recommend isolation circuit, optocoupler driving circuit, push-pull output circuit and wiring units；Wherein, the constant current
Source circuit is connected between the power supply of the electronic switching circuit and the input terminal of the photovoltaic power supply optocoupler；The optocoupler
Isolation circuit is recommended with first to third output end, wherein first, third output end be connected to the photovoltaic power supply light
Two output ends of coupling, second output terminal are connected to the driving end of the push-pull output circuit；The optocoupler recommends isolation circuit
Input terminal be connected to the optocoupler driving circuit, to generate recommending output mode under the driving effect of the optocoupler driving circuit；
The MOS switch unit includes one or two or more sets of metal-oxide-semiconductors, and each group of metal-oxide-semiconductor includes two concatenated metal-oxide-semiconductors；Wherein, institute
The source electrode for stating two concatenated metal-oxide-semiconductors is connected, and drains respectively as the first ends I/O and the 2nd ends I/O；The MOS
The grid of all metal-oxide-semiconductors of switch unit is commonly connected to the output end of the push-pull output circuit, and source electrode is commonly connected to institute
State the first output end that optocoupler recommends isolation circuit；Wherein, when the MOS switch unit includes metal-oxide-semiconductor more than two, each group
It is connected in parallel between metal-oxide-semiconductor；There are two input terminals for the push-pull output circuit tool, are separately connected the optocoupler and recommend isolation circuit
The first output end and third output end；The push-pull output circuit recommends the recommending output mode of isolation circuit in the optocoupler
Under the action of formed it is secondary recommend, generate the switching signal for the metal-oxide-semiconductor on or off for controlling the MOS switch unit so that
All metal-oxide-semiconductors of the MOS switch unit on or off under the action of switching signal.
Preferably, the MOS switch unit further includes being parallel between the first ends I/O and the 2nd ends I/O
Metal-oxide-semiconductor protects circuit.It is highly preferred that the metal-oxide-semiconductor protection circuit includes varistor and the first diode in parallel；Wherein,
The anode of first diode is connected to the 2nd ends I/O, and cathode is connected to the first ends I/O.Pass through MOS after concatenation
Pipe two varistor and diode in parallel between draining, can play the role of preventing surge and heavy current impact, to effectively
Protect metal-oxide-semiconductor in ground.
Preferably, it includes the first optocoupler and the second optocoupler connected with push pull mode that the optocoupler, which recommends isolation circuit,；Its
In, the output end of first optocoupler emits the first output end that the extremely described optocoupler recommends isolation circuit, second optocoupler
The extremely described optocoupler of output end current collection recommend the third output end of isolation circuit, the output end collector of first optocoupler and
Connection forms the second output terminal that the optocoupler recommends isolation circuit to the output end emitter of second optocoupler jointly；Also,
It is parallel with the 5th resistance between first output end and the second output terminal；The optocoupler driving circuit includes connecting respectively
It is connected to the two-way metal-oxide-semiconductor driving circuit of first optocoupler input and second optocoupler input, and the two-way metal-oxide-semiconductor
Two metal-oxide-semiconductors of driving circuit select a conducting under the control of a control signal, so that first optocoupler and second light
Coupling alternatively opens, and the recommending output mode is generated to make the optocoupler recommend isolation circuit.
Preferably, the push-pull output circuit includes the first triode and the second triode connected with push pull mode, with
And the 6th resistance；Wherein, the base stage of the first triode and the second triode connects the institute for forming the push-pull output circuit jointly
It states and drives end, the collector of the collector of the first triode and the second triode is respectively described the two of the push-pull output circuit
The collector of a input terminal, the first triode is connected to the first output end that the optocoupler recommends isolation circuit, the second triode
Collector be connected to the third output end that the optocoupler recommends isolation circuit；The emitter of first triode and the second triode
It is commonly connected to wherein one end of the 6th resistance, the other end of the 6th resistance is the described defeated of the push-pull output circuit
Outlet.
The utility model proposes aforementioned electronic switching circuit at least have the advantages that compared with prior art：
1) it uses the metal-oxide-semiconductor of two differential concatenations to constitute one group of switching device, can be bidirectionally conductive, and do not have direction
Property, can be to avoid causing circuit to damage because of reversal connection the problem of；
2) constant-current source circuit is used in the feeder ear of circuit, the range of power supply can be widened so that entire electronic cutting
It powered-down road can be with the power supply of wider range；
3) photovoltaic power supply optocoupler is used, is directly produced electricl energy using photovoltaic signal, has not only been isolated but also messenger, is compared using arteries and veins
Rush the mode of transformer or common optical coupler, circuit safety and reliability；
4) push-pull output circuit is used, can allow high-power MOS tube quickly unlatching/cut-off of MOS switch unit, is avoided out
Closing time delay causes high-power MOS tube to generate heat, to make switching device loss, fever be preferably minimized；
5) due to it is provided by the utility model be pure electronic switching device, so there is no noise, oncontacting in switch motion
Point aging, the problems of conventional switch circuits such as non-relay coil loss.
Description of the drawings
Fig. 1 is the electronic switching circuit figure based on high-power MOS tube that one embodiment of the utility model provides.
Specific implementation mode
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Specific embodiment of the present utility model provides a kind of electronic switching circuit, and with reference to figure 1, there are two the ends I/O B+ for tool
And P+, the electronic switching circuit can be connected to by the two ends I/O B+ and P+ between energy-storage module and load.With continued reference to figure
1, which includes that MOS switch unit 100, constant-current source circuit 200, photovoltaic power supply optocoupler U1, optocoupler recommend isolation
Circuit 300, optocoupler driving circuit 400, push-pull output circuit 500 and wiring units 600 preferably further include a regulator circuit
700。
The constant-current source circuit 200 is connected to the power supply of the electronic switching circuit and the photovoltaic power supply optocoupler U1
Input terminal between, it is therefore an objective to the power supply range for widening the electronic switching circuit.In a specific embodiment, such as
Shown in Fig. 1, which includes two diodes D3 and D4, two triode VT3 and VT4 and two resistance R9
And R10, two diode D3 and D4 be in parallel and anode is commonly connected to the power supply of 12V, cathode is commonly connected to triode
The emitter of VT3；The collector of triode VT3, base stage are connected to the base stage of triode VT4, emitter, triode VT4
Collector be connected to photovoltaic power supply optocoupler U1 input terminal light emitting diode anode；Resistance R9 is connected to triode VT3's
Between emitter and base stage, resistance R10 is connected between the base stage of triode VT4 and ground GND, and photovoltaic power supply optocoupler U1's is defeated
Enter to hold the cathode of light emitting diode to be grounded.The specific composition of the constant-current source circuit is not limited to the description of above-mentioned specific embodiment,
Also there can also be other forms, as long as being connected between the power supply and the input terminal of photovoltaic power supply optocoupler U1, use
In the range for widening the power supply constant-current source circuit can, belong to the scope of protection of the utility model.
It is to be appreciated that the power supply of above-mentioned 12V is only illustrated, the power supply of the electronic switching circuit not only can be with
It is 12V, can also be designed according to customer demand, such as can is 24V, 30V, 33V or 36V etc., it is without being limited thereto.
With reference to figure 1, the optocoupler recommends isolation circuit 300 with first to third output end, wherein：The first, third is defeated
Outlet is connected to two output ends (i.e. emitter sum aggregate of optocoupler inside phototriode of the photovoltaic power supply optocoupler U1
Electrode), second output terminal is connected to the driving end of the push-pull output circuit 500.The optocoupler recommends the defeated of isolation circuit 300
Enter end and be connected to the optocoupler driving circuit 400, under the driving effect of the optocoupler driving circuit 400 generate recommend it is defeated
Go out.As shown in Figure 1, in a specific embodiment, it includes two connected with push pull mode that the optocoupler, which recommends isolation circuit 300,
A optocoupler U2 and U3 and three resistance R2, R3 and R5, wherein：The output end emitter of optocoupler U2 is that the optocoupler recommends isolation
First output end of circuit 300, the output end collector of optocoupler U3 be the optocoupler recommend isolation circuit 300 third it is defeated
The common connection of outlet, the output end collector of optocoupler U2 and the output end emitter of optocoupler U3 forms the optocoupler and recommends isolation circuit
300 second output terminal, resistance R5 are connected between first output end and the second output terminal, the connection of the one end resistance R2
3.3V voltage sources are connected in anode, the other end of optocoupler U2 input terminal light emitting diodes, it is defeated that the one end resistance R3 is connected to optocoupler U3
Enter to hold anode, the other end connection 3.3V voltage sources of light emitting diode.In a more preferred embodiment, the photovoltaic power supply optocoupler
It is parallel with electrolytic capacitor C1 and zener diode D2 between two output ends of U1.
With reference to figure 1, the MOS switch unit 100 includes one or two or more sets of metal-oxide-semiconductors, and each group of metal-oxide-semiconductor includes two
Concatenated metal-oxide-semiconductor；Wherein, the source electrode of described two concatenated metal-oxide-semiconductors is connected, and drains respectively as the ends I/O B+ and the ends I/O P+.
When the MOS switch unit 100 includes metal-oxide-semiconductor more than two, it is connected in parallel between each group metal-oxide-semiconductor, such as exemplified by Fig. 1
, including two groups of metal-oxide-semiconductors (Q1 and Q2 series connection are one group, and Q3 and Q4 series connection are another group), two metal-oxide-semiconductor strings in each group of MOS
After connection, the described two ends I/O B+ and P+ respectively as the electronic switching circuit are drawn in their two drain electrodes.The MOS
The grid of all metal-oxide-semiconductors of switch unit 100 is commonly connected to the output end of the push-pull output circuit 500, and source electrode connects jointly
It is connected to the first output end that the optocoupler recommends isolation circuit 300.
As shown in Figure 1, in one embodiment, the optocoupler driving circuit 400 include two metal-oxide-semiconductor Q5 and Q6 and
Four resistance R7, R8, R11, R12, wherein the grid of metal-oxide-semiconductor Q6 is connected to control signal input KEY1, source by resistance R8
Pole ground connection, drain electrode are connected to the input terminal light emitting diode cathode of optocoupler U3；The grid of metal-oxide-semiconductor Q5 is grounded by resistance R7, source
Pole is grounded, and drain electrode is connected to the input terminal light emitting diode cathode of optocoupler U2；The grid of metal-oxide-semiconductor Q5 and the drain electrode phase of metal-oxide-semiconductor Q6
Even；Resistance R11 is connected between the grid and source electrode of metal-oxide-semiconductor Q6；The one end resistance R12 is connected to the grid of metal-oxide-semiconductor Q5, the other end
It is connected to the second end of the resistance R2 of optocoupler U2 input terminals light emitting diode anode, meanwhile, the second end of resistance R2 is additionally coupled to
3.3V voltage.
3.3V voltage sources needed for the switching circuit of the utility model can be by the regulator circuit 700 to the power supply
Power supply (such as 12V power supplies) exports after being handled.As shown in Figure 1, HT7533 may be used in the regulator circuit 700
It realizes, specifically, the regulator circuit 700 includes three diode D5~D7, two resistance R4 and R13 and two capacitance
C2, C3, wherein diode D5 and D6 are in parallel and anode is commonly connected to 12V power supplies, and cathode is commonly connected to resistance R4's
One end of one end and R13, the anode of the other end connection light emitting diode D7 of resistance R4, and the cathode of light emitting diode D7 is grounded
Two IN pins of another chip termination HT7533 of GND, resistance R13, and two IN pins of HT7533 connection capacitance C2
The other end of one end, capacitance C2 is grounded GND, and one end of capacitance C3 is grounded the OUT pins of GND, another chip termination HT7533,
OUT pins export 3.3V voltage sources needed for the utility model switching circuit, as light current, can be used as the optocoupler recommend every
Input terminal power supply from circuit 300.
There are two input terminals for the tool of the push-pull output circuit 500, are separately connected the institute that the optocoupler recommends isolation circuit 300
State the first output end and the third output end；The push-pull output circuit 500 recommends the institute of isolation circuit 300 in the optocoupler
State formed under the action of recommending output mode it is secondary recommend, generate the metal-oxide-semiconductor on or off for controlling the MOS switch unit 100
Switching signal, so that all metal-oxide-semiconductors of the MOS switch unit 100 on or off under the action of the switching signal.?
In one specific embodiment, as shown in Figure 1, the push-pull output circuit 500 includes two triodes connected with push pull mode
VT1 and VT2 further includes a resistance R6, wherein connection forms the push-pull output circuit to the base stage of triode VT1 and VT2 jointly
The collector at the 500 driving end, triode VT1 and VT2 is respectively described two inputs of the push-pull output circuit 500
End, the collector of triode VT1 are connected to the first output end that the optocoupler recommends isolation circuit 300, the current collection of triode VT2
Pole is connected to the third output end that the optocoupler recommends isolation circuit 300；The emitter of triode VT1 and VT2 are commonly connected to
Wherein one end of resistance R6, the other end of resistance R6 are that the output end of the push-pull output circuit 500 (is connected to MOS
The grid of all metal-oxide-semiconductors of switch unit).
In the electronic switching circuit of aforementioned offer, switching device using powerful metal-oxide-semiconductor (such as 200A, 100V's
High-power MOS tube, naturally it is also possible to it is more high-power, or bigger is realized by the high-power MOS tube of multigroup differential concatenation in parallel
Power), further include metal-oxide-semiconductor protection circuit to protect high-power MOS, the MOS switch unit 100, which protects therefore
Protection circuit includes that a two-way transition diode D1 and a varistor R1, diode D1 and varistor R1 are connected in parallel on reversed string
Between two drain electrodes for joining two metal-oxide-semiconductors (such as Q1 and Q2) after (source electrode is connected to form concatenated mode), playing prevents wave
The effect with heavy current impact is gushed, so as to be effectively protected switching device Q1, Q2, Q3 and Q4 of switching circuit.Wherein, institute
State metal-oxide-semiconductor switching device in MOS switch unit 100 can according to client's needs, when by electric current it is bigger when, can mostly simultaneously
Join several groups of metal-oxide-semiconductors.
The utility model is recommended isolation circuit 300, optocoupler driving circuit 400 in photovoltaic power supply optocoupler U1, optocoupler and is pushed away
Under the cooperating with each other for drawing output circuit 500, enable to entire switching circuit high-pressure section and low-pressure section all every
From being all optical signal transmission between high-low pressure, be not electrically connected, be effectively protected control circuit from energy-storage module forceful electric power
The interference of signal；In addition, can achieve the effect that the MOS conduction and cut-offs of fast driving MOS switch unit, reduce to greatest extent
Switching time delay and MOS switch dissipation.
In addition, as shown in Figure 1, the wiring units 600 of the utility model include first, second, third interface J1, J2, J3
With the 4th interface module J4；Wherein, first interface J1 is the connection jaws of one ends I/O B+ of the utility model electronic switching circuit, is used
In the positive terminal for connecing the energy-storage module (such as electric automobile lithium battery group)；Second interface J2 is the utility model electronic cutting
The connection jaws of the powered-down another ends the I/O P+ in road, the positive input line for connecing the load (such as motor of electric vehicle)；Third
Interface J3 connects the positive charging wire of the energy-storage module；
The 4th interface module J4 includes at least one control signaling interface, and institute is received by the control signaling interface
State control signal.For example, the control signal (such as 3.3~5V level signals) that battery management system provides is from the 4th interface module
The control signaling interface 2,3 or 4 of J4 inputs, then arrives the control signal input of the optocoupler driving circuit 400 of the utility model
KEY1.Wiring units as shown in Figure 1 provide can connect three independent electronic switching circuits control signaling interface 2,
3、4。
As a kind of illustrative embodiment of the utility model, when 12V power supply from constant-current source circuit 200 into
Enter, and photovoltaic power supply light idol U1 (for example, by using 191b optocouplers) it is electric after, the voltage of exportable 8~10V, be recommending output mode electricity
High-power MOS tube in road 500 and driving MOS switch unit provides the energy.When needs are to the energy-storage module such as lithium battery
When group is charged or is needed through the energy-storage module to the load supplying, the control to the optocoupler driving circuit 400
Signal input part KEY1 processed provides a high level signal, and metal-oxide-semiconductor Q6 is made to be connected and metal-oxide-semiconductor Q5 cut-offs, so optocoupler U3 open and
Optocoupler U2 shutdowns, triode VT1 is connected and triode VT2 cut-offs, so that all switches of the MOS switch unit 100
Pipe is connected；During the energy-storage module is to the load supplying, detect that the voltage of the energy-storage module is less than first
When threshold value, or during charging to the energy-storage module, detect that the voltage of the energy-storage module is higher than second threshold
When, provide a low level signal to the control signal input KEY1 of the optocoupler driving circuit 400, make metal-oxide-semiconductor Q6 end and
Metal-oxide-semiconductor Q5 conducting, so optocoupler U3 shutdowns and optocoupler U2 is open-minded, triode VT1 cut-offs and triode VT2 conductings so that
All switching tubes of the MOS switch unit 100 end.In specific embodiment of the present utility model, optocoupler is supplied to drive
The high level signal of the control signal input of dynamic circuit 400 is 3.3~5V, and low level signal is 0.7V or less.
In addition, the control signal input interface of the utility model is convenient, TTL, COMS within controller 12V are almost commonly used
Standard drive signal can drive the switching device of the utility model.The electronic switching circuit of the utility model also has following
The advantages of：Wide using voltage range, the power supply of energy-storage module can be used within 100V the case where；It can be opened with channeling
Pass pattern is designed into same PCB, can form abundant extension, meet the needs of different use occasions；Integrated level is very
Height, using flexible can be that product saves a large amount of installation controls, and the also miniaturization for consumer product volume provides technology guarantor
Barrier；Electronic switching circuit no matter work 10mA electric currents or suspend mode zero-power, power consumption it is extremely low；With superpower high and low voltage isolation energy
Power, can pressure resistance 2KV；Finally, this product has temperature control defencive function, and appearance temperature is exceeded to be started radiator fan or automatically shut down
Output, can protect equipment safety operation.And relay mode separately need to add thermometric to protect circuit.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is confined to these explanations.For those skilled in the art of the present invention
For, without departing from the concept of the premise utility, several equivalent substitute or obvious modifications, and performance can also be made
Or purposes is identical, all shall be regarded as belonging to the scope of protection of the utility model.
Claims (9)
1. a kind of electronic switching circuit has the first ends I/O (B+) and the 2nd ends I/O (P+), and passes through the first ends the I/O (B
+) and the 2nd ends I/O (P+) be connected to energy-storage module and load between, it is characterised in that：The electronic switching circuit includes
MOS switch unit (100), constant-current source circuit (200), photovoltaic power supply optocoupler (U1), optocoupler recommend isolation circuit (300), optocoupler
Driving circuit (400), push-pull output circuit (500) and wiring units (600)；Wherein, the constant-current source circuit (200) is connected to
Between the power supply of the electronic switching circuit and the input terminal of the photovoltaic power supply optocoupler (U1)；
The optocoupler recommends isolation circuit (300) with first to third output end, wherein first, third output end connects respectively
Two output ends of the photovoltaic power supply optocoupler (U1) are connected to, second output terminal is connected to the push-pull output circuit (500)
Drive end；The input terminal that the optocoupler recommends isolation circuit (300) is connected to the optocoupler driving circuit (400), with described
Recommending output mode is generated under the driving effect of optocoupler driving circuit (400)；
The MOS switch unit (100) includes one or two or more sets of metal-oxide-semiconductors, and each group of metal-oxide-semiconductor includes two concatenated MOS
Pipe；Wherein, the source electrode of described two concatenated metal-oxide-semiconductors is connected, and drains respectively as the first ends I/O (B+) and described second
The ends I/O (P+)；The grid of all metal-oxide-semiconductors of the MOS switch unit (100) is commonly connected to the push-pull output circuit
(500) output end, source electrode are commonly connected to the first output end that the optocoupler recommends isolation circuit (300)；
Wherein, it when the MOS switch unit (100) includes metal-oxide-semiconductor more than two, is connected in parallel between each group metal-oxide-semiconductor；
The push-pull output circuit (500) tool is separately connected the optocoupler recommends isolation circuit (300) the there are two input terminal
One output end and third output end；The push-pull output circuit (500) is recommended the described of isolation circuit (300) in the optocoupler and is pushed away
Draw formed under the action of output it is secondary recommend, generate opening for the metal-oxide-semiconductor on or off for controlling the MOS switch unit (100)
OFF signal, so that all metal-oxide-semiconductors of the MOS switch unit (100) on or off under the action of switching signal.
2. electronic switching circuit as described in claim 1, it is characterised in that：The MOS switch unit (100) further includes parallel connection
Metal-oxide-semiconductor between the first ends I/O (B+) and the 2nd ends I/O (P+) protects circuit.
3. electronic switching circuit as claimed in claim 2, it is characterised in that：The metal-oxide-semiconductor protection circuit includes the pressure of parallel connection
Quick resistance (R1) and the first diode (D1)；Wherein, the first diode (D1) is two-way transition diode, is connected to described second
Between the ends I/O (P+) and the first ends I/O (B+).
4. electronic switching circuit as described in claim 1, it is characterised in that：Two outputs of the photovoltaic power supply optocoupler (U1)
Electrolytic capacitor (C1) and zener diode (D2) are parallel between end.
5. electronic switching circuit as described in claim 1, it is characterised in that：Further include regulator circuit (700), the voltage stabilizing electricity
The input terminal on road (700) is connected to the power supply, and output end forms 3.3V voltages, isolation circuit is recommended as the optocoupler
(300) voltage source of input terminal.
6. such as electronic switching circuit described in any one of claim 1 to 5, it is characterised in that：The optocoupler recommends isolation circuit
(300) include the first optocoupler (U2) connected with push pull mode and the second optocoupler (U3)；Wherein, first optocoupler (U2) is defeated
Outlet emits the first output end that the extremely described optocoupler recommends isolation circuit, and the output end current collection of second optocoupler (U3) is extremely
The optocoupler recommends the third output end of isolation circuit, the output end collector and second optocoupler of first optocoupler (U2)
(U3) connection forms the second output terminal that the optocoupler recommends isolation circuit to output end emitter jointly；Also, described
The 5th resistance (R5) is parallel between one output end and the second output terminal；
The optocoupler driving circuit (400) includes being connected to the first optocoupler (U2) input terminal and second optocoupler
(U3) the two-way metal-oxide-semiconductor driving circuit of input terminal, and two metal-oxide-semiconductors of the two-way metal-oxide-semiconductor driving circuit control signal one
Control under select a conducting so that first optocoupler (U2) and second optocoupler (U3) alternatively open, to make the light
Coupling recommends isolation circuit (300) and generates the recommending output mode.
7. electronic switching circuit as claimed in claim 6, it is characterised in that：The optocoupler driving circuit (400) include the 5th,
6th metal-oxide-semiconductor (Q5, Q6), the seven, the 8th resistance (R7, R8) and the 11st, twelfth resistor (R11, R12)；
The grid of 6th metal-oxide-semiconductor (Q6) is connected to control signal input (KEY1) by the 8th resistance (R8), and source electrode connects
Ground, drain electrode are connected to the light emitting diode cathode of the input terminal of second optocoupler (U3)；The grid of 5th metal-oxide-semiconductor (Q5) passes through
7th resistance (R7) is grounded, and source electrode ground connection, drain electrode is connected to the light emitting diode cathode of the input terminal of first optocoupler (U2)；
The grid of 5th metal-oxide-semiconductor (Q5) is connected with the drain electrode of the 6th metal-oxide-semiconductor (Q6)；
Eleventh resistor (R11) is connected between the grid and source electrode of the 6th metal-oxide-semiconductor (Q6)；The one end twelfth resistor (R12) connects
It is connected to the grid of the 5th metal-oxide-semiconductor (Q5), the other end is connected to the second electricity of the first optocoupler (U2) input terminal light emitting diode anode
The second end of (R2) is hindered, meanwhile, the second end of the second resistance (R2) is additionally coupled to 3.3V voltages；Second optocoupler (U3)
Input terminal light emitting diode anode pass through 3rd resistor (R3) connect 3.3V voltages.
8. electronic switching circuit as claimed in claim 6, it is characterised in that：The push-pull output circuit (500) includes to push away
The first triode (VT1) and the second triode (VT2) and the 6th resistance (R6) that the mode of drawing connects；
Wherein, connection forms the push-pull output circuit to the base stage of the first triode (VT1) and the second triode (VT2) jointly
(500) the driving end, the collector of the first triode (VT1) and the collector of the second triode (VT2) are respectively described
Described two input terminals of push-pull output circuit (500), the collector of the first triode (VT1) be connected to the optocoupler recommend every
The first output end from circuit (300), the collector of the second triode (VT2) are connected to the optocoupler and recommend isolation circuit
(300) third output end；The emitter of first triode (VT1) and the second triode (VT2) is commonly connected to the 6th resistance
(R6) other end of wherein one end, the 6th resistance (R6) is the output end of the push-pull output circuit (500).
9. electronic switching circuit as claimed in claim 6, it is characterised in that：The wiring units (600) include first, the
Two, third interface (J1, J2, J3) and the 4th interface module (J4)；
Wherein, first interface (J1) is the connection jaws of the first ends I/O (B+), and the anode for connecing the energy-storage module connects
Line；Second interface (J2) is the connection jaws of the 2nd ends I/O (P+), the positive input line for connecing the load；Third connects
Mouth (J3) connects the positive charging wire of the energy-storage module；
4th interface module (J4) includes at least one control signaling interface, described in control signaling interface reception
Control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820412591.7U CN208094525U (en) | 2018-03-26 | 2018-03-26 | A kind of electronic switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820412591.7U CN208094525U (en) | 2018-03-26 | 2018-03-26 | A kind of electronic switching circuit |
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| Publication Number | Publication Date |
|---|---|
| CN208094525U true CN208094525U (en) | 2018-11-13 |
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ID=64060024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820412591.7U Withdrawn - After Issue CN208094525U (en) | 2018-03-26 | 2018-03-26 | A kind of electronic switching circuit |
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| CN (1) | CN208094525U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108377142A (en) * | 2018-03-26 | 2018-08-07 | 郑州安纳信电子科技有限公司 | A kind of electronic switching circuit |
-
2018
- 2018-03-26 CN CN201820412591.7U patent/CN208094525U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108377142A (en) * | 2018-03-26 | 2018-08-07 | 郑州安纳信电子科技有限公司 | A kind of electronic switching circuit |
| CN108377142B (en) * | 2018-03-26 | 2023-11-07 | 郑州安纳信电子科技有限公司 | Electronic switching circuit |
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Granted publication date: 20181113 Effective date of abandoning: 20231107 |